Male "ghost sharks"—eerie deep-sea fish known as chimaeras that are related to sharks and rays—have a strange rod jutting from their foreheads, studded with sharp, retractable teeth. New research ...
The tenaculum might contribute to the discomfort women feel when getting an IUD. One company is testing an alternative. By Alisha Haridasani Gupta A growing number of women have opted to get an ...
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